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Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 4:56 AM ET

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William Cook

Named as an officer, director or promoter on SEC Form D filings · CA · Mar 15, 2024 → Oct 8, 2025

1deal (issuers)
$6.7Mreported sold
16investors
2Form D filings
2024–2025years on file
Follow this personLook further ↓PDF

Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:17 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

William Cook is listed as an executive officer and director on 2 SEC Form D filings by 1 issuer between Mar 2024 and Oct 2025: Brain Jar Games, Inc. (San Francisco, CA — industry reported as "Other" — 2024–2025; $6.7M reported sold to 16 investors).

What this means One deal on file with the SEC. A Form D is the notice a company files after it starts selling a private investment — it is a notice, not an approval.

Listed alongside Brett Krause (2 shared filings), Jonathan McEvoy (1 shared filing) and Rohan Knuckey (1 shared filing).

What this means These are the other officers, directors or promoters the companies named on the same forms — the team around William. Each name links to their own page.

Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AZ, CA, DE, TX, WA) — 1 court case matching the name, 12 bankruptcy cases matching the name listed in Key records below.

What this means 13 records came back. Each one is listed below with a link to the original document and a line saying why it matched. A name match is not proof it is the same person or company — read the why line and the document. Being sued or named in a release is an accusation, not a finding.

We compared 2 public filings for William Cook and found 6 differences: Form D filed 23 days after the first sale; Same name, different state: "William Benjamin Thurston Cook" (X0) is a separate record; and more below.

What this means These are differences between the sponsor's own SEC filings — both values, dates and sources are listed in Key records, section 4. Most have ordinary explanations; ask the sponsor.

What the community is saying

Community search for William Cook has not run yet — it is joining a line of 2,236 names; searches run around the clock at the hosts' allowed rate. Searched so far: 27 names.

Community comments are quoted as written by their authors. Sources searched: BiggerPockets forums (via DuckDuckGo, Brave, Bing and BiggerPockets search) and Reddit (search feed + public archive).

Key records

Five things investors ask first. Items still in human review are counted, not shown.

1. Lawsuits

1 case: 1 dismissed

Reynolds Resorts-Riverland LLC v. William Cook dismissed
District Court, C.D. California · No. 2:08-cv-07743 · Filed Nov 24, 2008 · Closed Mar 2, 2009 · Nature of suit: 290 Other real property actions
Role of William Cook: Defendant · Outcome: Terminated 2009-03-02 — FJC Integrated Database disposition: Dismissed: want of prosecution Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
What was searched

Sources searched: CourtListener bulk data (RECAP dockets as of 2026-09-30; recall-first rule 10-24) — federal district + bankruptcy courts State courts: not covered (one-tap state court links under Look further). PACER: not searched. · Last checked Oct 24, 2026, 2:17 AM ET.

Court records show docket facts only; we never restate allegations as facts. Outcome wording comes from the docket feed; where it does not state a disposition we say so.

State courts: not covered (one-tap state court links under Look further). No state offers a lawful automated statewide source PartnerFacts can use today. Texas (re:SearchTX) terms prohibit storing results in a database open to third parties; New York (WebCivil) and Massachusetts (MassCourts) require a browser check that blocks scripted queries; California has no statewide index (58 county portals; Rule of Court 2.503 grants name-based access case by case); Florida, Utah and Illinois offer paid or partial access whose terms for automated use are unverified. Washington (dw.courts.wa.gov; bulk index reports under a JISC data-dissemination agreement), Delaware (CourtConnect; Court of Chancery not included) and Arizona (apps.azcourts.gov/publicaccess, which has an official channel to request high-volume access) are the candidates; PartnerFacts will request written permission before any automated search. Federal courts are searched through CourtListener / RECAP.

2. Regulatory actions

None found in sources searched — SEC enforcement releases (index scan as of Oct 24, 2026, 2:50 AM ET) · state securities regulators: AZ, CA, DE, TX, WA (crawled Oct 23, 2026)

What was searched

SEC enforcement searched: SEC litigation releases and administrative proceedings — respondent names in the sec.gov index titles (30,205 releases, 1995-09-19 to 2026-10-23); release text is read only to confirm a candidate. Names that appear only in the body of a release are not found. — Searched SEC litigation releases and administrative proceedings (1995→ / 2007→) (30,205 records as of Oct 24, 2026, 2:50 AM ET) — nothing matched William Cook..

State securities regulators searched: AZ (Corporation Commission Securities Division), CA (DFPI — 16 of 12,159 DFPI respondent pages read so far; sponsor-name matches are read first), DE (DOJ Investor Protection Unit), TX (State Securities Board), WA (DFI) — last crawled Oct 23, 2026, 9:57 PM ET. Other states are not covered.

3. Bankruptcies

12 cases: 12 closed (disposition not in docket feed)

William Cook closed
United States Bankruptcy Court, C.D. California · No. 8:23-bk-12606 · Filed Dec 10, 2023 · Closed Apr 2, 2024
Role of William Cook: Debtor · Outcome: Case closed 2024-04-02 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William J. Cook closed
United States Bankruptcy Court, C.D. California · No. 2:11-bk-35333 · Filed Jun 13, 2011 · Closed Oct 28, 2011
Role of William J. Cook: Debtor · Outcome: Case closed 2011-10-28 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
Carlene M. Cook and William T. Cook closed
United States Bankruptcy Court, E.D. California · No. 10-93675 · Filed Sep 20, 2010 · Closed Dec 4, 2012
Role of William T. Cook: Debtor · Outcome: Case closed 2012-12-04 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William Cook closed
United States Bankruptcy Court, E.D. California · No. 09-32255 · Filed Jun 15, 2009 · Closed Oct 2, 2009
Role of William Cook: Debtor · Outcome: Case closed 2009-10-02 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William B. Cook and Sharon J. Cook closed
United States Bankruptcy Court, E.D. California · No. 08-21187 · Filed Feb 1, 2008 · Closed Aug 12, 2013
Role of William B. Cook and Sharon J. Cook: Debtor · Outcome: Case closed 2013-08-12 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William F. Cook and Cynthia L. Cook closed
United States Bankruptcy Court, N.D. California · No. 07-11467 · Filed Nov 14, 2007 · Closed Feb 25, 2008
Role of William F. Cook and Cynthia L. Cook: Debtor · Outcome: Case closed 2008-02-25 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William A. Cook and Patricia A. Cook closed
United States Bankruptcy Court, E.D. California · No. 05-90242 · Filed Feb 9, 2005 · Closed May 27, 2005
Role of William A. Cook and Patricia A. Cook: Debtor · Outcome: Case closed 2005-05-27 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William H. Cook and Clyde Cook closed
United States Bankruptcy Court, N.D. California · No. 03-12442 · Filed Oct 9, 2003 · Closed Jan 15, 2004
Role of William H. Cook and Clyde Cook: Debtor · Outcome: Case closed 2004-01-15 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William S Cook closed
United States Bankruptcy Court, C.D. California · No. 8:03-bk-10990 · Filed Feb 7, 2003 · Closed Jun 3, 2003
Role of William S Cook: Debtor · Outcome: Case closed 2003-06-03 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William Cook closed
United States Bankruptcy Court, C.D. California · No. 1:02-bk-12554 · Filed Mar 21, 2002 · Closed May 22, 2002
Role of William Cook: Debtor · Outcome: Case closed 2002-05-22 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William E. Cook and Carmen A. Cook closed
United States Bankruptcy Court, E.D. California · No. 01-20410 · Filed Jan 12, 2001 · Closed Apr 24, 2001
Role of William E. Cook and Carmen A. Cook: Debtor · Outcome: Case closed 2001-04-24 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
William G Cook closed
United States Bankruptcy Court, C.D. California · No. 1:00-bk-12265 · Filed Mar 6, 2000 · Closed Sep 28, 2000
Role of William G Cook: Debtor · Outcome: Case closed 2000-09-28 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 779 federal dockets); 9 people with this name in Form D filings; court in the person's filing state (CA)
What was searched

Sources searched: Federal bankruptcy courts via CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not covered (one-tap state court links under Look further). PACER: not searched (RECAP only). · Last checked Oct 24, 2026, 2:17 AM ET.

Court records show docket facts only; we never restate allegations as facts. Outcome wording comes from the docket feed; where it does not state a disposition we say so.

State courts: not covered (one-tap state court links under Look further). No state offers a lawful automated statewide source PartnerFacts can use today. Texas (re:SearchTX) terms prohibit storing results in a database open to third parties; New York (WebCivil) and Massachusetts (MassCourts) require a browser check that blocks scripted queries; California has no statewide index (58 county portals; Rule of Court 2.503 grants name-based access case by case); Florida, Utah and Illinois offer paid or partial access whose terms for automated use are unverified. Washington (dw.courts.wa.gov; bulk index reports under a JISC data-dissemination agreement), Delaware (CourtConnect; Court of Chancery not included) and Arizona (apps.azcourts.gov/publicaccess, which has an official channel to request high-volume access) are the candidates; PartnerFacts will request written permission before any automated search. Federal courts are searched through CourtListener / RECAP.

4. Differences between public sources

Comparisons cover issuers and sponsor groups — see the issuer pages under Deals

6 differences found between the filings for William Cook (compared 2 filings on Oct 24, 2026)

Note · Sep 15, 2025 – Oct 8, 2025

Form D filed 23 days after the first sale — Brain Jar Games, Inc.

The filing says the first sale was Sep 15, 2025. The Form D was filed Oct 8, 2025 — 23 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 8 days past that.

What this means A late notice is common and carries no penalty by itself. It is worth asking the sponsor why the paperwork lagged.

Form D · Oct 8, 2025 ↗Brain Jar Games, Inc. — PartnerFacts page ↗
Sources
Note · Apr 6, 2015 – Jul 6, 2016

Same name, different state: "William Benjamin Thurston Cook" (X0) is a separate record

This page covers filings where the address state is CA. A separate record, "William Benjamin Thurston Cook" with address state X0, is listed on 4 filings — most recently by Hummingbird Resources PLC (Jul 6, 2016). The two records do not overlap in time: this page runs Mar 15, 2024 to Oct 8, 2025; the other runs Apr 6, 2015 to Jul 6, 2016.

What this means Could be the same person who moved, or two people with the same name. We keep them apart until a filing ties them together. Check both pages before you decide.

William Benjamin Thurston Cook (X0) — PartnerFacts page ↗Form D · Jul 6, 2016 ↗Hummingbird Resources PLC — PartnerFacts page ↗William Cook (CA) — this page ↗
Sources
Note · Jan 6, 2010 – Jun 11, 2014

Same name, different state: "William E. Cook" (NC) is a separate record

This page covers filings where the address state is CA. A separate record, "William E. Cook" with address state NC, is listed on 6 filings — most recently by SBA MATERIALS INC (Jun 11, 2014). The two records do not overlap in time: this page runs Mar 15, 2024 to Oct 8, 2025; the other runs Jan 6, 2010 to Jun 11, 2014.

What this means Could be the same person who moved, or two people with the same name. We keep them apart until a filing ties them together. Check both pages before you decide.

William E. Cook (NC) — PartnerFacts page ↗Form D · Jun 11, 2014 ↗SBA MATERIALS INC — PartnerFacts page ↗William Cook (CA) — this page ↗
Sources
Note · Sep 25, 2012

Same name, different state: "William Cook" (NY) is a separate record

This page covers filings where the address state is CA. A separate record, "William Cook" with address state NY, is listed on 1 filing — most recently by Cayuga Marketing, L.L.C. (Sep 25, 2012). The two records do not overlap in time: this page runs Mar 15, 2024 to Oct 8, 2025; the other has one filing dated Sep 25, 2012.

What this means Could be the same person who moved, or two people with the same name. We keep them apart until a filing ties them together. Check both pages before you decide.

William Cook (NY) — PartnerFacts page ↗Form D · Sep 25, 2012 ↗Cayuga Marketing, L.L.C. — PartnerFacts page ↗William Cook (CA) — this page ↗
Sources
Note · Nov 3, 2010 – Jun 20, 2011

Same name, different state: "William Cook" (CT) is a separate record

This page covers filings where the address state is CA. A separate record, "William Cook" with address state CT, is listed on 3 filings — most recently by BITE TECH, INC (Jun 20, 2011). The two records do not overlap in time: this page runs Mar 15, 2024 to Oct 8, 2025; the other runs Nov 3, 2010 to Jun 20, 2011.

What this means Could be the same person who moved, or two people with the same name. We keep them apart until a filing ties them together. Check both pages before you decide.

William Cook (CT) — PartnerFacts page ↗Form D · Jun 20, 2011 ↗BITE TECH, INC — PartnerFacts page ↗William Cook (CA) — this page ↗
Sources
Note · Apr 14, 2011

Same name, different state: "WILLIAM COOK" (MI) is a separate record

This page covers filings where the address state is CA. A separate record, "WILLIAM COOK" with address state MI, is listed on 1 filing — most recently by DOW CORNING CORP (Apr 14, 2011). The two records do not overlap in time: this page runs Mar 15, 2024 to Oct 8, 2025; the other has one filing dated Apr 14, 2011.

What this means Could be the same person who moved, or two people with the same name. We keep them apart until a filing ties them together. Check both pages before you decide.

WILLIAM COOK (MI) — PartnerFacts page ↗Form D · Apr 14, 2011 ↗DOW CORNING CORP — PartnerFacts page ↗William Cook (CA) — this page ↗
Sources
What is compared

What is compared: every Form D and D/A we hold for this subject, side by side — filing dates vs. first-sale dates (the 15-day rule), amendment timing on open offerings (the yearly-amendment expectation), amounts sold, investor counts, offering amounts and minimums across amendments, industry and size bands, addresses, how each person's name and role is written, paid sellers' CRD numbers, and (for groups) where the member companies were formed and sit. Everything is as filed by the issuer; the SEC does not check it. Differences are common and usually have ordinary explanations — we show both values, the dates, and the source so you can ask. As of Oct 24, 2026.

5. Money to insiders

None reported on 2 offerings — no sales commissions, finder's fees or proceeds to insiders

Per-offering detail
Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
Oct 8, 2025 D
Brain Jar Games, Inc.
File 021-560105
$0$0$0None listed on this filingEDGAR ↗
Mar 15, 2024 D/A
Brain Jar Games, Inc.
File 021-507756
$0$0$0None listed on this filingEDGAR ↗

Counts come from Form D Items 12–15 on the filings in our index (latest filing per offering; one offering = one SEC file number; an amendment updates its offering rather than adding one). "To insiders" = gross proceeds used for payments to executive officers, directors or promoters. "—" = not reported on that filing. Amounts marked (est.) were reported as estimates. "Paid to sell it" = sales compensation recipients named on that filing (Item 12), each linked to FINRA BrokerCheck when a CRD number is reported.

Counted across every filing this person is listed on (latest filing per offering, per issuer).

Deals 1

Every issuer that named William Cook on a Form D, newest first. A Form D is the notice a company files after it starts selling a private investment.

BJ
Other

Brain Jar Games, Inc.

San Francisco, CA · Mar 15, 2024 → Oct 8, 2025 · 2 filings
  • Oct 8, 2025 · D · $5,499,997 sold of $5,499,997 · 6 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Mar 15, 2024 · D/A · $6,699,988 sold of $6,699,988 · 16 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $6.7M from 16 investors (100% of the $5.5M target) as of the latest filing. William is listed as executive officer, director on 2 filings for this deal.

Latest filing on EDGAR ↗
Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Other / 506(b) (18,678 filings); ranges are the middle half (25th–75th percentile). Computed by PartnerFacts from SEC EDGAR Form D data as of Oct 23, 2026, 5:45 PM ET. Rows without a range: fewer than 30 comparable filings, or not a Rule 506 offering. No ranking or score.

Other pages with the same name (8)

Separate person records under the same name, not combined with this page. Each line says whether it shares an issuer with this record.

  • William Cook — OH, 2 issuers, Jul 30, 2019 → Jul 30, 2019 · no shared issuer
  • William E. Cook — NC, 1 issuer, Jan 6, 2010 → Jun 11, 2014 · no shared issuer
  • William Benjamin Thurston Cook — United Kingdom (as filed: X0), 1 issuer, Apr 6, 2015 → Jul 6, 2016 · no shared issuer
  • William Cook — CT, 1 issuer, Nov 3, 2010 → Jun 20, 2011 · no shared issuer
  • WILLIAM COOK — MI, 1 issuer, Apr 14, 2011 → Apr 14, 2011 · no shared issuer
  • William Cook — NY, 1 issuer, Sep 25, 2012 → Sep 25, 2012 · no shared issuer
  • William Rand Cook — VA, 1 issuer, Apr 8, 2013 → May 5, 2015 · no shared issuer
  • William E. Cook — TX, 1 issuer, Aug 29, 2019 → Aug 29, 2019 · no shared issuer

People around William 3

Officers, directors, promoters and management entities named on the same filings, as of Oct 23, 2026, 5:45 PM ET.

BK
No photo found yet (own website and image search run after this page is viewed)
Person

Brett Krause

Director · 2 shared filings (1 issuer) · also on 2 other issuers

Listed on the same filings as William Cook. Their page shows their other deals.

RK
No photo found yet (own website and image search run after this page is viewed)
Person

Rohan Knuckey

Director · 1 shared filing (1 issuer)

Listed on the same filings as William Cook. Their page shows their other deals.

JM
No photo found yet (own website and image search run after this page is viewed)
Person

Jonathan McEvoy

Executive Officer · 1 shared filing (1 issuer)

Listed on the same filings as William Cook. Their page shows their other deals.

Registrations and other filings

Adviser registration (Form ADV)

None of the 1 issuer this person is listed on appears in Form ADV (searched 24,962 advisers as of Oct 2, 2026). A person is never an adviser firm; Form ADV is checked for the issuers and the management companies they are listed with.

Other offering types (Regulation A and Regulation Crowdfunding)

Searched SEC Regulation A Data Sets (Forms 1-A, 1-K, 1-Z; 2015 Q2 → 2026 Q3); SEC Crowdfunding Offerings Data Sets (Form C family; 2016 Q2 → 2026 Q3); EDGAR form index for 2026 Q3 → 2026 Q4 (51,358 records as of Oct 23, 2026, 8:41 PM ET) — nothing matched this name.

Property records none — individuals are not matched

Property records are matched to companies only, never to individuals, so none are matched to William Cook by design. Searched property records in Hillsborough County FL (Clerk recorded-document index Oct 14, 2026 to Oct 15, 2026 + FL DOR 2026 ownership roll), Miami-Dade County FL (FL DOR 2026 ownership roll), Harris County TX (HCAD 2026 ownership roll), Dallas County TX (DCAD 2026 ownership roll), New York City ACRIS documents and PLUTO ownership rows already retrieved for other issuers, Cook County IL sale and ownership rows already retrieved for other issuers (814,874 records as of Oct 23, 2026, 8:59 PM ET) for the 1 issuer this person is listed on — nothing matched.

Public profiles and social

Websites and social links of the issuers William Cook is listed on: none on file. No website or social profile named in Brain Jar Games, Inc.'s SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #58,814 of 374,652 in line (14 issuers searched so far). One-tap searches: Look further ↓

Look further

One-tap searches on sites we do not index ourselves, with the name pre-filled (San Francisco, CA). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Social and web

LinkedIn people search ↗Instagram ↗X (Twitter) ↗Facebook ↗YouTube ↗Google ↗Google Images ↗Google News ↗Meta Ad Library ↗

Courts

CourtListener / RECAP (federal) ↗PACER case locator (federal, login) ↗California — find the county court ↗Los Angeles Superior Court case search ↗

Securities regulators

SEC EDGAR full-text search ↗SEC action look-up ↗FINRA BrokerCheck ↗SEC IAPD adviser search ↗

Business registries

California Secretary of State business search ↗OpenCorporates ↗

Change history

No corrections have been requested for this page.

Every fact links to its public-record source. Plain-English notes next to a fact are our reading of that fact, not a rating. Request a correction · Facts policy

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